Milling-machine.



G. W. SMITH. I MILLING MACHINE. APPLICATION FILBDJQAY 12, 1908.

991,100, Patentd May .2, 1911.

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m'fnesses Inven'for:

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ArPi-mATxoN'mLz-n my 12. 1908.

Patented May 2, 1911.

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G. W. SMITH. MILLING MACHINE. APPLICATION FILED MAY 12, 1908 991, 109 'Patsnted May 2, 1911.

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UNITED STATES PATENT OFFICE.

qnonen W. smrrn, or nooxronn, ILLINOIS, ASSIGNOR TO THE INGERSOLL LLING MACHINE company, or ROCKFORD, ILLINOIS, A CORPORATION.

'- citizen of the -United States, residing at Rockford,-in the county of Winnebago and State of Illinois, have invented certain new and Improvements in Milling Ma chines, of which the following is a specification. a

The object of this invention is to construct a. milling machine having a vertical spindle "and fa horizontalspindle adapted to be rotated' independently and together.

The further object of this invention is to i form a brace for the knee.

In the accompanying drawings, Figure 1 is a perspective view of my improved milling machine. Fig.2 is a vertical central sec tion of the-upper portion of the housing and gearing. Fig. 3 is a vertical section on dotted line a a Fig. 1 showing the clutch lever for the vertical spindle. Fig. 4 is a section on dotted line b Fig 5. -Fig. is a section on dotted line 0 0 Fig. 1, showing.

the shifter lever for the back gear. Fig. 6 is an end view partly in section of the clutch lever for the horizontal spindle. Fig. 7 is vertical a section of the frictional brake cont-rollin the movements of the s indles.

. In the drawings at Fig; 1 I have shown in perspective a complete milling machine, and

the parts imparting movement to the table formin no part of this applieationf will,,,not bespecifically described or shown irf deta l,

but such parts are located in the finain 'housing 1? on thefront face of which are formed 1 ids-ways 2. A knee 3 is formed with guidesf l which slide in connection with the guide-ways '2.

The main'housing' 1 is supported by the base5 which has a portion 6 extending be- 1 "heath theknee 3. To the base 6 beneath the knee 3 is secured a bracket 7 which supports a screw -,3, the upper end of which bears againsfithe underface of the knee 3, and

supports the centralportion of the knee. By

i this screw 8 the knee will be raised ma. guided by the guide-ways 2 To the base-,6 are secured two braces 9vone located each side of the depending arms 10 of the bolts 'l2 pass, the bolts being supported by the weryends of the arms 10, and rece1ve nuts,13,.on their projecting ends.

the knee has been adjusted to bring Specification of Letters Patent Application filed May 12,

These braces are MILLING-MACHINE.

1908. Serial No. 432,513.

16 provided with a toothed rack 17. A pin ion 18 meshes with the toothed rack 17 and has-a projection 19 extending through the main housing 1 with which acrarik 20 en-' gages for the purpose of turning the pinion thereby extending or withdrawing the horizontal spindle. splined connection with the horizontal, spindle 15,-and is adapted to slide in the lengthwise direction of the spindle. The projecting end of this sleeve 21 is formed with an annular groove 22. To the end of the main housing is secured a bracket 23 to which is pivoted a lever 24 having one end 25 in yoke form, and its other end in handle -form. The yoke 25 supports two blocks 26 which are located in the annular groove 22 of the sleeve 21. This lever 24 supports a spring actuated plunger 27 which is adapted to enter holes 23 in the bracketthereby locking the lever to the bracket, and by means of this lever,'thesleeve 21 can be moved in the lengthwise direction of the spindle 15. The center portion of this sleeve 15 is formed with radially extending projections 29.

On the sleeve 21 aremounted two spur gears 30 and 31 of varying-diameters in amanner to turn freely-thereon. The hub 32 of the gear 31 is supported in a bearin33 Patented May 2, 1911 A clutch sleeve 21 has a.

in the back cover 34 for the main houhlng.

The gears 30 and 31 are'formed with facingwith the gear 31. A back gear shaft 43 is supported in bearings 44 and 45, and has three 37 are splined .spur gears 40, 41 and 42 of varying diameters. The gear 41 meshes with the gear 30, and the gear 42 meshes spur gears 46, 47, and 48, splined to it. The 119 gear 47 on thisback gear shaft meshes with the gear 40 on the horizontal drive shaft 37. To the inner end of this back gear shaft 43 ,is fixedly secured a bevel-pinion 49. A

drive pulley shaft 50 is supported in bearings 51 and 52, and a pulley 53 has a fixed connection with this shaft. On this shaft is splined the double spur gear comprising 'the two sections '54 and 55 of varying diamelever 57 having a spring actuated plunger -58 fitted to-enter the holes 59 in the bracket "so as to hold:- the lever from movement.

One end of the lever is formed with the handle 60 and the other end 61 supports a block 62 which is located between the'gear sections 54 and 55. By means of this lever, the gear sections 54 and 55 can be shifted along the shaft 50 so as to hold the gear sections 54 in engagement with the gear wheel 46, or the gear 'section 55 in engagement with the gear wheel 48. With the gear section 154 in engagement with the gear 46, the gear 47 in engagement with the gear 40, the gear 41 in engagement with the gear 30, and theprojections 29 of the sleeve 21 in engagement with the gear 30, a' connection will then be made with the spindle 15. If the projections 29 of the sleeve 15 be moved into enwill be imparted to the spindle. By moving 'the gear section 55 into engagement with the gear 48 diiferent speeds will be imparted to the gears 30 and 31, and by placmg the sleeve 21' into engagement alternately with the gears 30 and 81 two other speeds will be impartedto the horizontal spindle thus making four different speeds that :ean

ibe imparted to the horizontal spindle 15.

- To the pulley shaft 50 is secured a sprocket wheel 63 and a chain belt 64 con vnects this wheel with the mechanism for imparting various movements to the table 14, which forms no part of this application.

' From the upper end of the main housing 1 projects an overhanging housing 65 which is some distance above and over the table" 14-, and above the horizontal spindle 15 thereby leaving sufiicient space for work to ing 1 with which the crank 20 may be placed in engagement for the purpose of turning the pinion, thereby raising-or lowering the vertical spindle 66.

At Fig. 7 is shown a sectional viewof the frictional brake-for the sleeve of both spindles; like reference numerals will be applied to both. The housing is formed with a screw-threaded opening'7l within which is screw-threaded a plug 7 2'which has aicentral screw-threaded opening 73 within which is turned a plug 74. A brake shoe '75 is fitted to the outer face'of the sleeve 67 and has a rod 76 extending within the central opening 7 3 of the plug 72. A spring 77 surrounds this rod, one end bearing against the plug 72 and its other end against the shoe 75. The action 'of this spring is to hold the shoe against the, sleeve with sufiicient force to prevent its accidental movement. By

turning in the plug 74 its inner end will rest against the end of the rod 76, andwill seat the shoe '7 5 firmly against the sleeve, thereby locking the sleeve against movement.

A clutch sleeve 78, has a splined connec-.

bracket 80, thereby locking the lever to the bracket, .and by means of this lever, the sleeve 78 can be moved in thelengthwise direction of the spindle 66. The center portion ofthis sleeve 79 is formed with radially extending projections 86.

On the sleeve 78 are mounted two spur gears 87? and 88 of varying diameters in a manner -to turn freely thereon. The hubs 89 and 90 of the gears 87 and 88 respectively are located in bearings 91 and 92 formed. in the overhanging housing and the cap93 for the housing respectively." The gears 87 and 88 are -formed with facing projections 94 and95 respectively, forming clutch sections, 1

and are located so that the projections 86 of the sleeve 78 may enter between them,

thereby forming a driving connection be-- tween either of the gears and the sleeve, and through the sleeve with the vertical spindle.

A vertical drive shaft 96 is supported in bearings 97 and 98 formed in the overhanging housing 65 and in the cap 93 .forthis '120' housing respectively. To this drive shaft 96 are splined two spur gears 99 and 100 of As before explained the back gearshaft 43 is given two different speeds by the en gagement of the gear sections 46 and 48 with I two otherspeeds-will be imparted to the vertical spindle. The four movements of the vertical spindle are. the same as the four movements of the horizontal spindle 15. These spindles areadapted to support cutters which operate upon two sides of .work

placed on the table 14:.

At Fig. lis' shown an arbor support 102 in its connection with the overhanging housing 65, and an arbor 103 is held in working position by the support and the horizontal spindle l5.

By means of the slidable sleeves 21 and 78 the horizontal and vertical spindles 15 and 66 respectively can he held out of action without stopping the rotations of the gearing connecting the spindles with the drive pulley 53 and either-spindle can be thrown into action, or both spindles cube in action at one time.

-I claim as my invention; 1. In a milling machine, the combination with a frame, of a horizontal spindle journa1ed therein, a vertical spindle journ'aled therein, a shaft, means for driving the shaft at different speeds, and changeable speed gearing for transmitting motion from the shaft .to either spindle independently of the other. I

2. In a milling machine, the combination with a frame, of a horizontal spindle journaled therein, a vertical spindle journaled in theframe, a shaft, and difierent sets of gears for. transmitting motion from the shaft to the respective spindles, said gears including clutches by which either or both spindles may be operated from said shaft.

3. In a milling machine, the combination with a frame, of a horizontal spindle journaled therein, a vertical spindle journaled therein, a shaft, means for drivingthe shaft at different speeds, and separate sets of changeable speed gearing for transmitting motion from the shaft to the respective spindles, said sets including clutches bywhich either or both spindles may be operated from said shaft.

4. Ina milling machine, the combination with a. frame having an overhanging portion, of a horizontal spindle journaled in the frame, a vertical spindle journaled in the r overhanging portion, a back shaft, a main driving shaft, changeable speed gearing for transmitting motion from the main driving shaft to the back shaft, a set of changeable speed gearing for transmitting motion from the back shaft to the horizontal spindle, a vertical shaft geared to the backshaft, and changeable speed gearing for transmitting motion from the vertical shaft to the vertical spindle.

5.- In a milling machine, the combination with a frame, of a Vertical spindle journaled therein, a horizontal spindle journaled therein, driving means, and separate sets of changeable speed gearing for transmitting motion from the driving means to the respective spindles to permit said splndles to be operated either separately .or s multaneously and either spindle to be driven at a faster or slower speed than the other.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

GEORGE IV. SMITH. 

